How to get program to print out dir once, change the cd, and open a text file?

I am writing a program to take input from a user and print out the contents of the cwd, to be able to change the cwd you're working in, to open a text file in the cwd, or to quit the program.

So far, I can get the dir command to list the .txt files in the cwd but its on an endless loop. I can specify a new directory, but the question just repeats itself, and I can get the program to respond to the quit command.

Here is my code:

import os cwd = os.getcwd() print("Current working directory: ", cwd) dirlist = input("Choose DIR, CD, OPEN, or QUIT: ") while True: if dirlist == "dir": for x in os.listdir(): if x.endswith(".txt"): print(x) elif dirlist == "cd": for x in os.listdir(): changedir = input("Change to what path?") print(cwd) elif dirlist == "open": for x in os.listdir(): opendir = input("Open what file?") open(opendir) else: print("Ok, goodbye.") break 

What do I need to do to accomplish these three things:

1. not have an endless loop with the dir input and just loop back to the initial question.
2. take input for a new directory and loop back to the initial question while staying in the new directory.
3. open a text editor after the open input.

Thanks for any advice.

Edit:

Thanks to people in the comments I have solved questions 1 and 3, but question 2 is still stumping me. Here is my current code-

elif dirlist == "cd": for x in os.listdir(): changedir = input("Change to what path?") os.chdir(cwd) print (changedir) break 

How do I get the cwd to show up and print as what it was renamed with the input from changedir?